Katie Cassidy on her 'Arrow' family drama and romance woes: 'It's very draining'

Katie Cassidy on her 'Arrow' family drama and romance woes: 'It's very draining'

Things were going pretty well for Laurel (Katie Cassidy) on "Arrow." Her boyfriend has an actual job, she's got a juvenile delinquent helping her pick up the slack at work, and we're pretty sure there was a week in there where no one tried to murder her. (Okay, maybe three days.)And then her mother showed up.Dinah Lance (Alex Kingston) is a major player in the DC Comics universe that "Arrow" is based on, so we knew her return to Starling City would cause some waves. We didn't expect her to reveal that she believes Laurel's sister, Sara, is still alive. (If you'll recall, Sara in a shipwreck while sleeping with Oliver, who happened to be Laurel's boyfriend at the time. Oh, sisters.)Expect some fireworks when the Lance family gets back together. When we brought up the family dynamics to Katie Cassidy on the PaleyFest red carpet, she had a mini panic attack before she could...